"Finally proper aerodynamics on a truck though. Applause. It is about time someone built something that does not look like (and has the air resistance) of a brick privy."
Unfortunately this is a side effect of a well intentioned, badly thought out EU law.
EU trunks have a maximum TOTAL length of vehicle, so Cab+ Trailer. The idea is that you would get stupid long trucks suitable for some countries, but useless in others. The knock on effect of course, was small, flat cabs, and long trailers.
There is work going on this to change it to maximum trailer length, to allow longer, more aero-dynamic cabs, within reason.